The invention – called the optical lattice clock – is a thousand times more accurate than cesium atomic clocks used for international timekeeping and is a contender for redefining how long a ...

For the first time, scientists have demonstrated that negative refraction can be achieved using atomic arrays - without the ...

is one of the world’s leading institutions and has so far realized an impressive range of different optical clocks - including optical single ion clocks and optical lattice clocks. The high level of ...

Laser diodes are semiconductors that generate light and amplify it using repeated reflection or "optical feedback." Once the ...

Without Katori's custom-made timekeeper, the experiment wouldn't have been possible, as conventional optical lattice clocks are so mammoth in size that just one can fill an entire laboratory.

A research team at POSTECH has developed a novel multidimensional sampling theory to overcome the limitations of flat optics. Their study not only identifies the constraints of conventional sampling ...

Researchers developed a numerical simulation technique for light wave interactions in triangular-lattice PCSELs, enhancing ...

This study introduces a multidimensional sampling theory, overcoming Nyquist limitations and enhancing metasurface design for advanced optical applications.